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<head>
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    <title>湖北省疫情防控-柱状图</title>
    <style>
        html,body{ width: 100%; height: 100%; margin: 0; padding: 0; }
        #container{ width: 100%;height: 100%;overflow: hidden; }
        #btn-group{ position: absolute; top: 10px; left: 15px; }
        #btn-group > a{ display: block; text-decoration: none; font-size: 14px; padding: 0 15px; height: 40px; line-height: 40px; color: #353535; background-color: rgb(255,200,0); border-radius: 4px; }
        #btn-group > a:hover{ color: #fff; }
        #container .bar{  position: relative;top: 60px; width: 100vw; height: 100vh; }
        #container .bar img{ width: 100%; height: 600px; }
    </style>
</head>
<body>
    <div id="container">
        <div id="btn-group">
            <a href="./index.html">返回</a>
        </div>
        <div class="bar">
            <img src="./hubei/bar.png" alt="湖北省疫情防控-柱状图">
        </div>
    </div>
</body>
</html>